1 package org.simantics.document.server.handler;
3 import org.simantics.Simantics;
4 import org.simantics.db.ReadGraph;
5 import org.simantics.db.exception.DatabaseException;
6 import org.simantics.db.request.Read;
7 import org.simantics.document.server.io.CommandContext;
8 import org.simantics.document.server.io.CommandResult;
9 import org.simantics.document.server.serverResponse.Error;
10 import org.simantics.document.server.serverResponse.IDelayedResponse;
11 import org.simantics.document.server.serverResponse.ServerResponse;
13 public abstract class EventHandler extends AbstractEventHandler {
15 protected abstract ServerResponse handle(ReadGraph graph, CommandContext parameters) throws DatabaseException;
17 public CommandResult handle(final CommandContext parameters) {
19 ServerResponse response = Simantics.getSession().syncRequest(new Read<ServerResponse>() {
21 public ServerResponse perform(ReadGraph graph) throws DatabaseException {
22 return handle(graph, parameters);
26 if(response instanceof IDelayedResponse && !(((IDelayedResponse)response).hasRun())) {
28 synchronized(response) {
31 } catch (InterruptedException e) {
37 } catch (DatabaseException e) {
39 return new Error(e.getMessage()); // Return some error